Comet

Fast PDF review,
simple plans.

Core drawing-review tools—including Drawing Compare, measurement, Scale Calibration, and Pin Count—are free. Upgrade for watermark-free PDF exports, more cloud storage, Auto Sync, and advanced comment workflows.

Free
$0Freeforever

For complete drawing review with core markup, Drawing Compare, measurement, Scale Calibration, Pin Count, basic comments, approval, and sharing.

  • ✓Open PDFs and images in your browser
  • ✓Pen, Highlighter, Shapes, and Text
  • ✓Basic comments and approval
  • ✓Share links and Manual Sync
  • ✓Add, merge, and organize PDF pages
  • ✓Shape Assist, Image Crop, and rectangular multi-select
  • ✓Drawing Compare: Overlay / Difference, 2-point alignment, and export of comparison results
  • ✓Measurement: 2-point Distance and Continuous Measure (perimeter / area)
  • ✓Scale Calibration
  • ✓Pin Count
  • ✓Export PDF with Comet watermark
  • ✓Limited Cloud Save
  • ✓Whiteboard Cloud Save within Free limits
Starter
Best for light users
Less than
$1/month
$9.99 billed yearly
14-day free trial. Cancel anytime.

Everything in Free, with watermark-free PDF export and expanded cloud storage.

  • ✓Everything in Free
  • ✓Watermark-free PDF export
  • ✓Expanded Cloud Save
  • ✓Expanded Whiteboard Cloud Save
  • ✓History / Rename / Delete
Pro
Best for individuals
$4.99/month
14-day free trial. Cancel anytime.

Everything in Starter, with Auto Sync, review management, due dates, comment exports, and larger cloud storage.

  • ✓Everything in Starter
  • ✓Auto Sync
  • ✓Comment and task management
  • ✓Due dates
  • ✓Comment export (PDF / XLSX)
  • ✓Larger Cloud Save
Team
Coming soon
$9.99per seat/month
14-day free trial when available.

A planned option for team workspaces, permissions, administration, and organization-level storage.

  • ✓Everything in Pro
  • ✓Team workspace
  • ✓Seat management
  • ✓Admin controls
  • ✓Permission management
  • ✓Organization storage
  • ✓Priority support

Feature comparison

Compare the features available in each plan today. Team is coming soon.

FreeStarterProTeam
Core review tools
PDF and image import✓✓✓✓
Add, merge, and organize PDF pages✓✓✓✓
Drawing Compare (Overlay / Difference, 2-point alignment, and export of comparison results)✓✓✓✓
Measurement (2-point Distance and Continuous Measure: perimeter / area)✓✓✓✓
Scale Calibration✓✓✓✓
Pin Count✓✓✓✓
Core annotation tools✓✓✓✓
Shape Assist✓✓✓✓
Image Crop✓✓✓✓
Rectangular multi-select✓✓✓✓
Whiteboard✓✓✓✓
Basic comments✓✓✓✓
Basic approval✓✓✓✓
Share links / Manual Sync✓✓✓✓
Storage and export
Cloud SaveUp to 3 files / 20MBExpandedLargerOrg storage
Watermark-free export×✓✓✓
Whiteboard Cloud SaveWithin Free limits✓✓✓
Pro review workflow
Auto Sync××✓✓
Comment and task management××✓✓
Due dates××✓✓
Comment export (PDF / XLSX)××✓✓

Coming soon

Planned features are listed separately from the features available today.

Planned for Team
  • AI Comment Organizer
  • Team workspace
  • Seat management
  • Admin controls
  • Permission management
  • SSO / domain control
  • Organization storage
  • Priority support

Planned features may change before release.

Plan notes

Billing and subscriptions
Starter is billed yearly. Pro is available with monthly or yearly billing. Any trial period, renewal date, billing amount, and billing terms shown in Stripe Checkout or the billing portal apply.
Cloud storage limits
Free includes limited Cloud Save for PDFs and whiteboards. Starter expands storage and removes the Comet watermark from general PDF exports. Pro adds larger storage and advanced review-management workflows.
Team availability
Team is coming soon and is not yet available for subscription. AI Comment Organizer, team collaboration, admin controls, and organization storage are planned.